With a two pawn advantage in an opposite bishops ending,
the winning chances are much better.

When the two extra pawns are connected, the main points
to remember are:

a) to have any chance of a draw the weaker side's king
must be in front of the pawns;

b) the pawns usually win if they can reach the sixth
rank; with the pawns further back, the weaker side has good chances
of a draw.

1.Bb5 Bf6 2.Ke4 The plan is simple; get
the king to f7 and push the e-pawn. 2...Bg5 3.Kf5 Bh4
4.Kg6 Black is in zugzwang; the white king does not even
have to get to f7 now. 4...Kc8 5.e7 +-

(3)

To draw, Black must prevent the pawns from reaching the
6th. The only way is to prepare to give up his bishop for both
pawns by Bg4 or Bf7; does it make any difference which Black
chooses? 1...Bf7! is a simple draw. The e-pawn
cannot advance to e6 without the support of the white king, but the
king cannot leave the defence of the d5 pawn, so White can make no
progress. All Black has to do is shuffle his bishop between f7 and
g8.

[A typical position in this line; Black has decided to
hold his extra pawn with f7-f5; the price he pays is a weakness on
the dark squares. White must open a file so that his heavy pieces
can combine with his powerful unopposed bishop.]
13...Ne7 [13...b5 14.d5! Ne7 15.dxe6 Bxe6 16.Qxd8
Rfxd8 17.Bxc7+/- (King.)] 14.f3! exf3 15.gxf3 Ng6? 16.Bg5
Qd6 17.h4! [In positions with opposite-sides castling,
whoever gains the initiative is likely to win; exactly the same is
true of middle-games with opposite-coloured bishops. In this
position, therefore, attack is more important than material.]
17...Rf7 [Black takes precautions against the
coming attack against g7.] 18.h5 Nf8 19.Bf4 Qd8 20.Rdg1 Nd7
21.Rg3 Nf6 22.Be5 [White probes the Black defenses. He
knows he wants to attack g7 but he is not yet sure of his best
attacking formation.] 22...Nd7 23.Bf4! [White
realises that it is important to keep his powerful dark squared
bishop] 23...Nf6 [Black is on the defensive and is
happy to repeat moves.] 24.Bg5 [White tries
another tack.] 24...Bd7 [Notice that this bishop
is helpless to defend the dark squares that will soon be
threatened.] 25.Rhg1 Kh8 [How can White strengthen
his attack?] 26.Ne2! [Since Black is on the
defensive, White realises that the knight is not needed on the
queenside for defense; instead it can join in the attack on the
king-side.] 26...c5 27.Nf4 h6 [27...Rc8 28.Ng6+!
hxg6 (28...Kg8 29.Ne5+-) 29.hxg6 Rf8 30.Rh3+ Kg8 31.Rgh1]
28.Ng6+ Kh7 [28...Kg8 29.Bxh6 Nxh5 30.Rh3 Nf6
31.Bg5 Rf8 32.Rh8+ Kf7 33.Rxf8++-] 29.Ne5 Re7
[29...Rf8 30.Bxh6!] 30.Bxf6 gxf6 31.Qg2! [31.Qg2
Qf8 (31...fxe5 32.Rg7+ Kh8 33.Qg6; 31...Qh8 32.Ng6) 32.Ng6
Qf7 33.Nxe7 Qxe7 34.Rg7+] 1-0

A few years later, a remarkably similar game was played
by Britain's first Grandmaster, Tony Miles.